What is the verb for word large?

There isn't a single verb that directly corresponds to the adjective "large". However, depending on the context, you could use several verbs to convey a similar meaning:

To enlarge: This means to make something bigger.

* Example: "The company plans to enlarge its factory to accommodate more production."

To expand: This means to increase in size or scope.

* Example: "The city is expanding rapidly."

To grow: This means to increase in size over time.

* Example: "The tree has grown large and strong."

To amplify: This means to increase the size or volume of something.

* Example: "The amplifier amplified the music."

To magnify: This means to make something appear larger.

* Example: "The microscope magnified the tiny insect."

You'll need to consider the specific context to choose the most appropriate verb.